Very nice photos. Most people post blurry pictures taken with a 2 mp phone or webcam.
I know what you mean!
Thanks! Oh yeah, I'm a pro family photographer and I do that for a living.
I thought these images were just snaps that I took while I was inspecting plants. I'm glad they are fine and usable. By all means, feel free to use them.
Its not nitrogen deficiency because the new leaves are not smaller than old leaves, also the distribution of the paleness is not correct for that. Nitrogen deficiency is usually more evenly spread over the leaves and does not affect new and old growth evenly it shows pale older growth and normal looking green shoots until it becomes severe then new shoots start getting pale/white looking as they steadily grow smaller and smaller leaves.
True, but I also had Ludwigia glandulosa and it just fell apart. First, the oldest leaves massively started to get yellow and die. The plant struggled to produce new shots, they were tiny and reddish, but they too went yellow and died. I was left with bare stems and several shots. I discarded everything. In that time, every other plants looked totally healthy and I was sure it was Ludwigia that had problems.
Now it looks like Nitrogen was deficient...?!
It might be sulfur deficiency, the bacopa and val's appearance match it pretty well. A general overall yellowing of the leaves nice and uniform = sulfur deficiency.
Yes, but I have pretty hard water... from what I've read, sulfur deficiency isn't common in hard water.
And it's quite rare, isn't it?
I think the plants need more time to start recovering. The new growth should start to get more healthy within a week. The bacopa and vals look iron deficient. The anubias pattern of necrosis looks a little strange, not very iron like, but taken in context with the other plants I'd still say its iron.
I completely agree with you, Anubias doesn't look like iron-only.
What substrate are you using? Also, does your house use a salt-softening system?
What brand is the micro fertilizer or are you mixing your own? How are you dosing the macros? Individual salts or a commercial brand? List the chemicals in the ferts. If there is no sulfate/sulfur containing chemicals in any of the ferts you are dosing then you might have found your problem especially if in a week your plants are not getting better.
Substrate is JBL florapol, it contains iron (duh!) and clay, no salt-softening system (only for a dish washer
). I mixed my own fertilizers.
In 1 liter there's K 1400ppm, Mg 1600ppm, NO3 10000 ppm, PO4 1000ppm. I add 1ml to 10l of water every day, 20ml in total. Micros have the same dilution, Fe 700ppm, Zn 100ppm, Mn 170ppm, Cu 13ppm, B 115ppm, Mo 5ppm.
The anubias' pattern of yellowing/necrosis is not consistent with iron or nitrogen from what I've seen. It might just be that the plant you have is reacting a bit strangely or this might be showing that the issue is not iron. I've never seen sulfur deficiency in anubias before so it might be that.
Anyway, here is a decent list of deficiencies and some general pics of what they look like. Keep in mind this site shows deficiencies for non-aquatic plants, probably food or garden plants which might not react exactly like aquatic plants. Each species is somewhat unique.
http://www.urbansunshine.com/content/index.php?page=plant-food-facts
Here is APC's current gallery of deficiencies. With any luck I'll be renovating this part of the site to be more accessible and more complete. If you'd like to give me permission to save your pictures into the database you could help contribute to our aquatic database of deficiencies for future people? It would also be helpful if you could post follow up pictures when the plants start recovering in a week or so. If you want to give the plants another 5-7 days to start showing if they are recovering with the current fertilizer doses, then try adding sulfur and see if that improves then we could conclusively nail it down to one or the other.
http://www.aquaticplantcentral.com/forumapc/aquarium-pictures/browseimages.php?c=12&userid=&t=
*edit*
I just had another look at the original anubias picture, it looks like it is being grown emersed outside of water? Can you post a pic of the entire plant?
Thank you very much for those links, taking your time to write and help! Urbansunshine deficiency drawings look very good! I will post the follow up images here, once my plants recover... hopefully soon enough. I don't grow Anubias emersed, I pulled it out for close inspection. However, it did grow emersed before I bought it! Can that be the reason for sick/strange new leaves, going from emersed to submersed?! I don't currently have the pic of the whole plant... It looks very big and healthy... except the 3 new leaves.